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21 April 2023 | Story Leonie Bolleurs | Photo Supplied
Dr Katlego Mashiane
Striving to make a difference in the field of biodiversity conservation, Dr Katlego Mashiane decided to pursue a PhD in Geography, focusing on the spatial modelling of grassland diversity and nutrients in subalpine environments. He received his PhD during the recent April graduation ceremonies on the Qwaqwa Campus.

In the small village of Ga-Mabotia about 25 km outside of Polokwane, Dr Katlego Mashiane grew up, surrounded by rocky mountains characterised by boulder outcrops, where he interacted with nature from an early age. 

He recently obtained his PhD, majoring in Geography, from the University of the Free State (UFS), which was conferred on him during the April graduation ceremonies that took place on the UFS Qwaqwa Campus. The title of his dissertation is Grass nutrients estimation as an Indicator of rangeland quality using satellite remote.

Predicting the presence of biodiversity and nutrients in an area

Based on the principle that diverse grasslands tend to perform better, environmental changes threaten the resilience and services these grassland ecosystems provide. The study examined how many different types of plants and animals can be found at a particular place to enhance our understanding of the ecosystem’s value to humans, and that biodiversity loss will reduce these ecosystem services. Focusing on spatial modelling of grassland diversity, Dr Mashiane specifically investigated the influence of topography and remotely sensed satellite data on species richness and diversity in subalpine environments, and how they are affected by the availability of grass species. To determine this, he used a random forest machine-learning algorithm to find the best information in the data that could be used to estimate the levels of species richness, diversity, and nitrogen in a protected national conservation park. 

His study discovered that some data types – such as the near-infrared variable and certain vegetation data (EVI and SAVI) – were especially useful for determining the number and variety of species in a certain area. With this information, scientists can create models that predict the presence of different types of biodiversity and nutrients in an area.

Playing a key role in protecting our natural assets

Equipped with this knowledge, one will be able to understand how to protect and preserve different types of biodiversity and promote the nutritional value of both plants and animals in the environment. “Land managers could use this information for conservation strategies,” states Dr Mashiane, who decided to pursue this study because he was curious about how environmental changes will affect species.

“Grasslands provide important ecosystem services underpinning human well-being, and therefore warrant our protection; I would like to play a role in protecting our natural assets and contribute to understanding our biomes, especially in the context of global change,” he says.

In the next five years, Dr Mashiane plans to pursue further research and mentor other students in his field of study.

News Archive

UFS implements paperless meeting system
2004-08-20

 

The Management Committee of the University of the Free State ’s (UFS) Executive Management recently entered the electronic environment of more effective and centralised meeting and decision-making administration by implementing ‘n computerised meeting system.

With this the UFS became the first higher education institution in the world to use the PARNASSUS-meeting management system. PARNASSUS , which refers to a mountain in the Greek mythology, is a licensed system from CIPAL in Belguim – a developer of software for a variety of applications.

“In stead of coming to a weekly management meeting with a file of documentation, each member now walks in with his/her laptop and the whole meeting procedure takes place electronically,” says Prof Sakkie Steyn, Registrar: General at the UFS.

At the same time the secretary registers the minutes point by point on the PARNASSUS programme. At the end of the meeting, after certain technical finishes are done, the minutes are distributed to members of the meeting and their secretaries/office managers. The draft minutes is also distributed to those who must implement decisions and prepare implementation steps. These staff members are given security clearance beforehand.

“The system is unique due to the fact that a translation engine has been built into the agenda and minute system. Agenda items can be submitted in Afrikaans and then automatically be translated in English by means of the interactive translation engine, or vice versa. The same principle applies to the minutes,” says Prof Steyn.

According to Prof Steyn the translation engine was develop with the expert assistance of the UFS’s Unit for Language Facilitation and Empowerment (ULFE). Word strings from previous minutes are now being added to the corpus of the translation engine.

“The system enables the secretary to continuously monitor which points are submitted for the agenda and if these points comply with the set standards namely clear recommendations, background and proposed implementation steps. The agenda is closed at a certain moment and no new points can then be added. The secretary does certain technical finished by means of a final classification of point and annexures. The draft agenda is then sent to the chairperson for approval, after which the agenda is electronically sent to members of the meeting and their secretaries/office managers for preparation,” says Prof Steyn.

“After the minutes have been approved at the next meeting, it is saved on the PARNASSUS decisions data base. The tracing of decisions made during previous meetings can be done by any person with the necessary security clearance. This is different from the past where stacks of documents had to be searched to find a decision,” says Prof Steyn.

According to Prof Steyn the secretariat and meeting administration services at the UFS has now entered a fully virtual and electronic environment. This will enhance effective decision making tremendously. “The PARNASSUS system saves us costs and time and the decentralisation of submissions to meetings lessens the work at centralised points,” says Prof Steyn.

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